Results 31 to 40 of about 84,000 (298)
Tunable contact angle hysteresis by micropatterning surfaces [PDF]
Applied Physics Letters, 2011 Lithography is used to form circular micropatterns which govern the evaporation of a water droplet. The surfaces are composed of concentric circular defects having a smooth indentation profile. When a droplet encounters a micropattern, evaporation occurs with distinct discontinuities in the droplet wetting contact angle and base radius. The addition of
Debuisson, Damien +2 more
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A simple method to create superhydrophobic aluminium surfaces [PDF]
, 2012 Superhydrophobic surfaces were prepared using a very simple and low-cost method by spray coating. A high static water contact angle of about 154° was obtained by deposition of stearic acid on an aluminium alloy.
Farzaneh, Masoud, Jafari, Reza
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A thermodynamic model of contact angle hysteresis [PDF]
The Journal of Chemical Physics, 2017 When a three-phase contact line moves along a solid surface, the contact angle no longer corresponds to the static equilibrium angle but is larger when the liquid is advancing and smaller when the liquid is receding. The difference between the advancing and receding contact angles, i.e., the contact angle hysteresis, is of paramount importance in ...
Makkonen, Lasse
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Electric field induced reversible spreading of droplets into films on lubricant impregnated surfaces [PDF]
, 2017 Electric fields can be used to force a droplet to wet a solid surface using an applied voltage. However, significant hysteresis usually occurs associated with pinning forces at the contact line.
Brabcova, Z +4 more
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Wetting of doubly periodic rough surfaces in Wenzel’s regime
MATEC Web of Conferences, 2018 In this work we present preliminary results from our numerical study of the shapes of a liquid meniscus in contact with doubly sinusoidal rough surfaces in Wenzel’s wetting regime.
Iliev Stanimir +2 more
doaj +1 more source
Drops with non-circular footprints [PDF]
, 2015 In this paper we study the morphology of drops formed on partially wetting substrates, whose footprint is not circular. This type of drops is a consequence of the breakup processes occurring in thin films when anisotropic contact line motions take place.
Alejandro G. González +4 more
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Superhydrophobic properties of silver-coated films on copper surface by galvanic exchange reaction [PDF]
, 2008 Hydrophobic properties of thin nanostructured silver films produced by galvanic exchange reaction on a copper surface were studied after passivation with stearic acid.
Farzaneh, Masoud +2 more
core +2 more sources
Closed-Form Expressions for Contact Angle Hysteresis: Capillary Bridges between Parallel Platens
Colloids and Interfaces, 2020 A closed form expression capable of predicting the evolution of the shape of liquid capillary bridges and the resultant force between parallel platens is derived. Such a scenario occurs within many micro-mechanical structures and devices, for example, in
James Bowen, David Cheneler
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Micro to nano: Surface size scale and superhydrophobicity
Beilstein Journal of Nanotechnology, 2011 This work looks at the fundamental question of how the surface mobility of drops in the composite state is related to the size scale of the roughness features of the surface.
Christian Dorrer, Jürgen Rühe
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Theoretical and numerical investigation into brush seal hysteresis without pressure differential
Advanced Composites Letters, 2019 Brush seal is a novel type contact seal, and it is well-known due to its excellent performance. However, there are many intrinsic drawbacks, such as hysteresis, which need to be solved.
Yuchi Kang +4 more
doaj +1 more source